Suitable for constructors with some previous experience of kit building experience like Softrock Projects

This Kit uses the Silicon Labs Chip SI570, an "ANY-RATE I2C PROGRAMMABLE XO", which is a 7x5mm 8 pin integrated frequency synthesizer, that can generate almost any frequency between 3.5MHz and up to 945 MHz depending on the Si570 chip used. The ready programmed ATMEL connects to the PC via the USB port

Tom DG8SAQ has written a cute application to set the frequency of theSi570 which may be downloaded from the link above.

-The frequency may be set to the nearest Hz...... -Or a Multiplication factor (in fractions) or Frequency offset (IF offset) may be specified .. -Applications include RX Local Oscillator and VXO for TX applications, Test Oscillator or QRSS Beacon etc.-Picture right shows the Setup screen and the configuration options.-Last Frequency Remember - Option for Standalone applications -SI570 Speed grade can be set for optimum use of C-grade device